Bosch HES252U, HES442U, HES245U, HES446U, HES256U User Manual
ELECTRIC FREE-STANDING CONVECTION RANGE
Installation Manual
For Use with Model(s): all electric models
Important Safety Instructions
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Table of Contents
Important Safety Instructions .............................................................................................. 1
Preparation ........................................................................................................................ 2
Installation ......................................................................................................................... 4
Final Steps ......................................................................................................................... 6
Please read all instructions before using this appliance.
WARNING
If the information in this manual is not followed exactly, a fire or explosion may result
causing property damage, personal injury or death.
Safety Instructions
PARTS NEEDED:
• 50 Amp Power Supply Cord Kit*
• Measuring Tape
• Phillips head Screwdriver
• 1-1/4” Wrench
• Pencil
• T-20 Torx Screwdriver
• Screws (2) and Anchors (2) for Anti-tip Bracket
(Style will vary depending on mounting surface)
• Level
• Drill and Drill Bit
• Safety Gloves and Goggles
• Torque Wrench (For Hard Wire Installation Only)*
• Tape (Optional)
• Cloth or cardboard (Optional - to Protect Floor)
ADDITIONAL PARTS NEEDED FOR
HARD WIRE INSTALLATIONS:
• Flexible Conduit (For Hard Wire Installation Only)
• Torque Wrench (For Hard Wire Installation Only)
• Note: Power Supply Cord Kit Not Necessary For
Hard Wire Installations
PARTS PROVIDED:
• Anti-Tip Bracket
• Terminal Lugs (For Use With Hard Wire Installations)*
* Not necessary for Canadian installations.
WARNING
Before installing, turn power OFF at the service
panel. Lock service panel to prevent power
from being turned ON accidentally.
Stepping, leaning or sitting on the doors or
drawers of this range can result in serious
injuries and also cause damage to the range.
Do not allow children to climb or play around
the range. The weight of a child on an open
door may cause the range to tip, resulting in
serious burns or other injury.
Do not store items of interest to children in the
cabinets above a range or on the backguard of a
range. Children climbing on the range to reach
items could be seriously injured.
• Remove all tape and packaging before using
the range. Destroy the packaging after unpacking
the range. Never allow children to play with
packaging material.
• Be sure your appliance is properly installed
and grounded by a qualified technician in
accordance with the National Electrical Code ANSI/
NFPA No. 7 latest edition and local electrical code
requirements.
Important: Local codes vary. Installation, electrical
connections and grounding must comply with all
applicable codes.
• Install only per installation instructions
provided in the literature package for this
range.
• Ask your dealer to recommend a qualified
technician and an authorized repair service.
• Know how to disconnect the power to the
range at the circuit breaker or fuse box in case of
an emergency.
• Do not repair or replace any part of the
appliance unless specifically recommended
in the manuals. All other servicing should be
done by a qualified technician. This may reduce
the risk of personal injury and damage to the
range.
• Never modify or alter the construction of a
range by removing leveling legs, panels, wire
covers, anti-tip brackets/screws, or any other part
of the product.
• DO NOT LIFT RANGE BY DOOR HANDLE.
Remove the door for easier handling and
installation. See ‘Removing Oven Door’ in the
Maintenance section of the Use and Care Manual.
CAUTION
Do not use the warming drawer(if equipped) or
oven for storage.
Unit is heavy and requires at least two people or
proper equipment to move.
Hidden surfaces may have sharp edges. Use
caution when reaching behind or under range.
Preparation
Installation
Final Steps
English • 1
Your Life ...
1. Install Ventilation
Bosch strongly recommends the installation of a
ventilation hood above this range. For most kitchens a
certified hood rating of not less than 300 CFM is
recommended. The range hood must be installed
according to instructions furnished with the hood.
2. Prepare Cabinets
Steps 1 through 5: Preparation
This unit is designed for installation near adjacent walls
and projecting surfaces constructed of combustible
materials.
Allow a minimum of 30 inches between cabinets where
range is to be installed (See Figure 1).**
Safety InstructionsPreparationInstallationFinal Steps
Required Clearances***
From cooktop to materials above (See Figure 2)
There must be a minimum clearance of 30 inches
between the top of the cooking surface and the bottom
of an unprotected wood or metal cabinet.
24 inches is acceptable when the bottom of the wood or
metal cabinet is protected by (a) not less than 1/4" of
flame retardant material which must be covered with
(b) not less than No. 28 MSG sheet metal, 0.015 inch
stainless steel’ or 0.024 inch aluminum or copper.
From range walls to adjacent materials (See Figure
2)
No clearance is required from unit walls to adjacent
vertical combustible walls on rear, right or left.
Clearance from range top to adjacent vertical walls
must be at least 4”.
NOTE: Some cabinet finishes cannot survive the
temperatures allowed by U.L., particularly self-cleaning
ovens; the cabinets may discolor or stain. This is most
noticeable with laminated cabinets.
3. Prepare Electrical Outlet
Figure 1: Prepare Cabinets
30” Minimum
Centered
4” Min.
No Clearance to
Wall Required**
Figure 2: Required Clearances
7 1/2”
30” Min.
between
cabinets
30”
Min.
4” Min.
The electrical outlet must be located in the shaded
space in Figure 3.
4 1/2”
21”
3 1/2”
4 1/2”
4. Prepare Walls and Floor
Seal any holes in the walls or floor. Remove any
obstructions (extra electrical or gas connections, etc.) so
that range will rest against wall properly.
Figure 3: Prepare Electrical Outlet
30”
5. Prepare Range
Place range in front of cabinets where it is to be
installed. Remove any packaging.
Tape warming drawer or storage drawer shut to keep
it from opening while installing the range.
During installation, place a portion of the box or a
piece of cloth under the range to protect floors.
To make range lighter and easier to handle, remove
door (see instructions in Use and Care manual).
** 12 mm clearance from range sidewall to cabinet required in Canada.
***Instructions were determined using Standard American cabinets. Standard base cabinets measure 36" high x 24" deep . Cabinets
over the cooking surface and cabinets adjacent to those over the cooking surface measure 13 inches deep from backwall. If
nonstandard cabinets are used, care should be taken to alter dimensions accordingly.
Tips:
2 • English
Step 6: Preparation (cont’d)
6. Prepare Electrical Connection
Verify that wiring to house is adequate.
Contact your local utility company to verify that the present
electric service to your home is adequate. In some
instances, the size of the wiring to the house and service
switch must be increased to handle the electrical load
demanded by the range.
Verify that wiring inside house is adequate.
Most wiring codes require a separate circuit with separate
disconnect switch and fuses either in the main entrance
panel or in a separate switch and fuse box.
Most local building regulations and codes require that
electrical wiring be done by licensed electricians. Be sure
to install your range according to the electric codes in place
in your region.
To prevent electrical shock, the grounding
prong on the range cord should not be cut or
removed under any circumstances. It must be
plugged into a matching grounding type receptacle and
connected to a correctly polarized 240- Volt circuit. If there
is any doubt as to whether the wall receptacle is properly
grounded, have it checked by a qualified electrician.
General Information
Ranges are dual rated for use on either 120/240 VAC or
120/208 VAC. See chart at right for power ratings and
circuit breaker sizes based upon the supply voltage for
each model.
Bosch recommends that the range be installed with a UL
approved power cord set (not supplied). The electrical
rating of the power cord set must be 120/240 volt, 50
amperes minimum. The power cord set shall be marked
“For Use with Ranges.” Always use a new power cord.
Alternatively, the range can also be hard wired using
the aluminum terminal lugs included in the literature
pack. If using this connection, flexible conduit must also
be used (not supplied).
Bosch recommends a 50 AMP, 60 Hz, 4 wire circuit;
However, the NEC (National Electric Code) allows for
some ranges to be installed on a 40 AMP circuit. Refer
to your local electric code requirements in order to
determine the required amperage. Always choose a
range power cord set that is rated for the circuit.
In compliance with the NEC, a separate circuit is also
recommended.
Note: In Canada, the range is shipped from the factory
with the range cord already installed. Proceed to “Steps 8
and 9: Installation - Final Steps”
For installations other than those in Canada, connect the
range cord (or wire conductors) at the terminal block
(More detailed instructions are found on pages 4 and
5). Access the terminal block by removing the cover in
the lower right hand corner of the range back panel
(See Figure 4). Install the strain relief and the proper
connector through the knockout(s) provided. The
electrical supply, including flexible conduit or power
cord, should be restricted to the shaded areas in Figure
3 (previous page.)
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Electrical Specifications
Model
HES23, HES34,
HES43
HES24, HES25,
HES44
*Varies by location. Refer to local electric code.
The strain relief provided with your range cord
Install Strain Relief
Place strain relief in knockout below terminal block (See Figure
4). Feed range cord through hole and strain relief up to
terminal block. Allow for slack in the cord between the strain
relief and terminal block. Once cord length/ slack has been
adjusted, attach strain relief per instructions included with
strain relief.
Figure 4
The knockout panel (below the terminal block) can be
removed from the range to install the strain relief:
Remove panel from range, install strain relief in
panel and reattach. DO NOT remove entire range
back panel.
Risk of Electric Shock or Fire. Frame grounded to neutral
through a ground strap. Grounding through the neutral
conductor is prohibited for new branch-circuit installations (1996
NEC), mobile homes, and recreational vehicles, or in an area
where local codes prohibit grounding through the neutral
conductor.
For installations where grounding through the neutral
conductor is prohibited, (a) disconnect the link from the
neutral, (b) use grounding terminal or lead to ground unit, (c)
connect neutral terminal to lead branch circuit neutral in usual
manner (when the appliance is to be connected by means of a
cord kit, use 4-conductor cord for this purpose).
Use only cord kits rated 125/250 volts (minimum), 50 amperes
and labeled “For Use with Ranges”. Strain relief provided with
cord must be installed per instructions included with cord.
Volts
120/240
120/208
120/240
120/208
must be properly installed.
Feed Range Cord
Through Strain Relief
in Knockout Panel Here
3 Wire Hook-Up
kW (by model)
US
Canadian
12.3
9.2
12.6
9.5
WARNING
Electric Connection
(found behind
terminal block
cover)
12.3
9.2
13.5
10.2
TIP
WARNING
AMPS (by model)
US Canadian
40 or 50*
40 or 50*
40 or 50*
40 or 50*
4 Wire Hook-Up
50
40 or 50*
Safety Instructions
Preparation
Installation
Final Steps
Figure 5
English • 3
Your Life ...
4 Wire Connection (Preferred to three wire connection).
1. Disconnect electrical power at breaker box.
2. Remove the terminal block cover to expose the
3. Remove top nut, star washer, and round washer
Note: DO NOT remove last round washer, last nut or
internal wiring leads.
4. Remove screw from bottom end of ground strap.
5. Remove ground strap from center post, rotate so
Safety InstructionsPreparationInstallationFinal Steps
6. Attach red wire, round washer, star washer and
7. Attach white wire, round washer, star washer and
8. Attach black wire, round washer, star washer and
9. Tighten all connections securely and replace
10. Properly secure strain relief (see previous page).
Step 7: Connect Electric - Range Cord (Recommended Method)
terminal block (See Figure A).
from each post.
that wide end is at top and attach wide end to
range through hole below junction box. Attach
green wire on top of ground strap. Tighten Screw
(See Figure D).
nut IN THIS ORDER to left post.
nut IN THIS ORDER to center post.
nut IN THIS ORDER to right post (See Figure E).
terminal block cover.
Figure A
Figure B
Ground Strap
Red
Black
White
3 Wire Connection
The Four Wire Connection (above) is preferred,
but where local codes and ordinances permit grounding
through neutral and where conversion to four wire is
impractical, the unit may be connected to the power
supply via a three wire connection.
1. Disconnect electrical power at breaker box.
2. Remove the terminal block cover to expose the
terminal block (See Figure A).
3. Remove top nut, star washer, and round washer
from each post.
Note: DO NOT remove last round washer, last nut or
internal wiring leads.
4. Attach white wire, round washer, star washer and
nut IN THIS ORDER on top of ground strap on
center post.
5. Attach red wire, round washer, star washer and
nut IN THIS ORDER to left post.
6. Attach black wire, round washer, star washer and
nut IN THIS ORDER to right post (See Figure B).
7. Tighten all connections securely and replace
terminal block cover (See Figure C).
8. Properly secure strain relief (see previous page).
Green Ground Screw
Figure C
Green Ground Screw
Ground Wire
Ground Strap
Figure D
4 • English
Note: DO NOT plug in range at this time.
Proceed to steps 8 and 9.
Figure E
Red
White
Black
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